Ceiling fan



FIG. 1 is a perspective view of a ceiling fan, showing the new design;

FIG. 2 is an enlarged perspective view of a portion thereof shown separately for completeness of illustration;

FIG. 3 is a front view of FIG. 1;

FIG. 4 is a rear view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a right side view thereof;

FIG. 7 is a top view thereof; and,

FIG. 8 is a bottom view thereof.

The broken lines in the drawings illustrate portions of the ceiling fan that form no part of the claimed design. 

CLAIM The ornamental design for a ceiling fan, as shown and described. 